公开(公告)号：US20250085530A1

公开(公告)日：2025-03-13

申请号：US18826529

申请日：2024-09-06

Applicant: VIA TECHNOLOGIES, INC.

Inventor： Fan DONG ,  Chao-Chin CHANG ,  Ziyang SONG

IPC: G02B27/00 ,  G06T7/80

Abstract: A method and system is provided in a simulation platform for optimizing the extrinsic parameters of fisheye-lens cameras installed on a vehicle. A simulated vehicle is established according to vehicular characteristics of associated actual vehicle over the simulated platform, thereby a lot of simulated checkerboard calibration plates are placed surrounding the simulated vehicle. A lot of simulated fisheye-lens cameras are generated and mounted on the simulated vehicle based on intrinsic parameters associated with actual fisheye lenses, and fisheye images are derived by using the simulated fisheye-lens cameras, respectively. The initially extrinsic parameters of each of the simulated fisheye-lens cameras are calculated over the simulated platform by using the first characteristic points of its own first fisheye image. Those initially extrinsic parameters may be used to optimize stitching images of the vehicle-surrounding-view systems, or be used to calculate installation tolerances when disposing fisheye-lens cameras physically.

公开(公告)号：US20250086920A1

公开(公告)日：2025-03-13

申请号：US18826485

申请日：2024-09-06

Applicant: VIA TECHNOLOGIES, INC.

Inventor： Ziyang SONG ,  Chao-Chin CHANG

IPC: G06V10/10 ,  G06T7/80

Abstract: A method for adjusting a stitching seam for surround-view stitching is provided. A first fisheye image from a first fisheye-lens camera and a second fisheye image from a second fisheye-lens camera are received. A target object in both of the first fisheye image and the second fisheye image is detected. The first fisheye image, the second fisheye image, and the target object are projected to a stitching image, which includes a stitching seam. The adjustment direction of the stitching seam is calculated according to the distance between the target object and the first fisheye-lens camera and the distance between the target object and the second fisheye-lens camera in the stitching image. The stitching seam is adjusted according to the adjustment direction.